Cylinder-grinder.



VmTond Came/m;

2 SHEETS-SHEET 1 Patented Sept. 10', 1918.

l CAMERON CYLINDER GRINDER.

APPLICATION FILED mm. 20. 1911.,

{ STATES PAT NT OFFICE. V

Manon, or VICTORIA, Bnrnsn cownma, CANADA.

CYLINDER-GRINDER.

To all whom it may concern Be it known that I, James CAMERON, a

British subject, residing at Victoria, in the will accurately\ and at ahigh. speed grind a cylinder to t desired diameter.

Another object of the invention resides in the provision of acylinder'grimiler having a spindle adjustably attachable to the faceplate or head stock of a lathe and sup porting on ball or rollerbearings a sleeve which may be rotatably driven by any suitable meansand which carries the car orundum or einery grinding wheel.

With these, and other objects in view as will become more apparent asthe descr1ption proceeds, the invention consists in certain novelfeatures of construction, combination and arrangement'of parts as willbe hereinafter fully described, illustrated and claimed,

In the drawings,

Figure 1 is a side elevation of my cylinder grinder showing the headconnected to the head stock of a lathe.

Fig. 2 isa longitudinal sectional view, partly inelevation through thegrinder.

Fig. 3 is a transverse section on the plane of line -l"-l of Fig. 2. v

Fig. 4 is a section on the plane of line 4- 4 of Fig. 2, and

Fig. 5 is a section on the planeof line 5eCTifbf'Fi'gT 1.;

Referring in ddtail to the drawings by numerals, 1 designator-17a latheofordinary construction having a fare plate or head stock 2 carriage-r3and in 10 plate 01' work holder 4 to which a 'cylin er 5 may be attachedfor pgrindinp, purposes.

'ljhe cylinder grinder or grinding attachment eon'lprises aspindle 6having a squared driving or attaching. plate 7 formed on one end thereoffo r'reeeptlon in the channel 8 extending transverselyacross the headstock as'shown. Anyrsuitable means such as the threaded shaft or screw 9may be provided Specification of Letters Patent.

Patented 'Sept. 1o, 1918.

Application filed much 26, 1917. ,semi No. 156,181.

for adjusting'the position of the spindle on the head stock. Tolockingly secure the spindle on the head stock I provide a nut 10threadingly engaged with the enlarged threaded portion 11 of the spindleandhaving a flange 12 adapted to clamp against the head stock. The nutis provided on one side of the flange 12 with wrench enga ing faces andis circular on the other side 0 the flange 12 and of sncha diameter'as-to accurately fit within the entrance the channel 8. i

' A sleeve enlarged at one end to form a hollow drivother end to form acylindrical housing 16. A pair of races 17 and and 18 are ri 'dlysecured to form race ways for the ball arings 21. Of course, rollerbearin ,may'be.

other suitable means engaging in the o enings 24 and engage the outerrace 1 to opening" 13 of" ll encirclesthe cylinder and is, I i i 10 ingpulley 15 and is enlarged adjacent its' hold it securely in position.The nut my be held securely in position by meansz of the locking screwthreads into theouter end of the spindle A packing gland 26kopeningthrough the nut and engagesa felt washer 27 as shown.

A circular lock nut 28 is provided by the other end. of the grinderand-is externally threaded for-engagement with the internally threadedhousing 16 into which it maybe screwed by a. suitable runner en gaegin{the bed in i wrench faces .29. The nut may I engagement with the race20 by a lock screw 30.

A grinding wheel 31 is secured to the end sleeve 14 by a screw bolt 32which is of the threaded into the nut29 and which is provided with ahead 33. A washer-33' of relatively soft material isinterposed' betweenthe emery wheel and the end of the sleeve,

This washer is recessed peripherally cent its inner face to provide a'recessintm which the end of the housing ltlextendi-sund is alsoprovided centrally with a boss or flange which fits into the centralopeningfof the emery wheel from its outer face and is a v i new" thegrindingwheeL Abusin 34 fits aim formed with a peripheral flange 35which engages the face of the emery wheel and held thereagainst bythehead of the bolt 32.

a [The Washer'33' and'the bushingflet being of I relatively soft metalor of fiber and accurately formed to project into the central "openingof the emery wheel insures accuracy in the mounting thereof.

[Lubricant may be injected into the sleeve through the bolt opening inthe nut 28 and is "prevented from escaping from the sleeve at the. otherend by; the washer 27 and packin 'g-land 26. t. ln operationof thegrinder, it is first securedecc'entrically' to the head stock of the Ilathe and "ij'otate d at'a' relatively-low speed This method of grindingand 'fi'ni-shing"'tlie1 cylinders with the emery wheel rotated at a mayb:- used as anatt'a clinientto' 'ajlath, 80 fthermorc that a battery ofgrinding element-s mayvl'ie used if desired iorsinniltaneously grind ngthe icyllnders of an engine. By

' in-g formed on the other end of the sleeve, a

lo'y said head. stoel'r' hi'l'e the sleeve carryingitheemery wheel isrotated at a comparativelyhiglr speed by 'the belt 36 which may bedrivenby the counter shaft of the lathe.

in at of speed n es ough Skin o if he 11 erwhich 15 very mayfbe bnilt'inthe machine itself-and' fu runningthe sleeve at a lower rate of speedthan when used-for grinding, the device may I be used us boringinstrument, From the foregoing description, taken in connect-ion theacconmanying drawings, it will be dent that l' have provided a R 'ery'Tsinrjile. aetical and efficient cylinder grinder wl'iiehposscssesrelatively few parts 'a'mtwlncb 'ihcretol'c may be manufacturedi*comparatiycly low cost.

le I'h'ave shown and described the preferred? embodiments of myinvention it" will dearly-l understood that 1 do not Wish to wit fet'hein 'zntion as claimed.

grinder a spindle and slee've encircling said spindle, a hollow 'pnlgley formed name end of the sleeve, a: housacjc so ired r ruction butmay make fall xv ith'ln the scope to the spindle, a second .rac ecooperatin withsaid first mentioned race, bearing e ements interposedbetween said 'racesf-a looking nut threaded into the pulley for holding'the second mentioned race in position, a race secured to anda rindingwheel secured to the ast mentione nut.

2. In a cylinder grinder of the-character described, a spindle adaptedfor attachment to a lathe, a sleeve encircling said spindle,

a pulley formed integrally on the-inner end oftheisleeve,'a housingformed integrally on the outer end of the sleeve, bearing elementsinterposed between the spindle and sleeve, nuts threaded into the pulleyand into properly in position, a grinding wheel, a

- threaded bolt mounting said grindin wheel on the lastmentioned nut anda was ermterposed between the grinding Wheel and the end of the housing,said Washer being formed .iy'th a Central circular flange projectinginto rindin .hlhssl v i I "AT cylinder grinder comprising a spindleadapted for attachment to the head stock of a lathe, means for lockingsaid spindle to .the head stock, a sleeve encircling said spindle,'ahollow pulley formed 'on the sleeve ad- ]acent the lathe end thereof, ananti-friction device interposed between said pulley and the housing" forholding the'bearing elements the spindle, means threaded into position,a

housing for holding the anti-friction device in position, a housingformed'integral on the other end .of the sleeve, ananti-friction deviceinterposed between 1 said 1 housing. and spindle, a nut threaded intothe housing for holding the last, mentioned anti-friction de- ;;y1c'c-;m position, an emery wheel having a central opening, a bolt extendingthrough said central, opening and secured t-o'the last -.ment1oned nut,adisk washerinterposed between the emery Wheel and the housing formedwith a central outwardly "projecting 1 memborfitting into theen crywheel and a bush ng mounted on said bolt and extending tli eroof. e

into the emery wheel through the outer face Tn t'estimony whereof Iaffix my signature;-

JAMES' CAMERON.

the spindle' adjacent itsouter end, a second .race mounted in the,ousing and cooperating with the last n ntioned race, bearing elementsbetween the-second pair of races, a locking nut threaded into thehousing for holding the third mentioned race in- 'osition,

